Single analog path multi-data rate matched filtered demodulator

Details Single analog path multi-data rate matched filtered demodulator Single analog path multi-data rate matched filtered demodulator

1989-11-13

1992-04-21

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 96, 329311, H04L 2706

Patent

active

051075210

ABSTRACT:
A method and system is disclosed which provides a multi-data rate demodulator for a communication system. The present invention 10 demodulates and extracts a data signal from a received analog signal. A baseband signal is extracted by filtering and downconverting the received analog signal. The baseband signal is sampled and converted to a digital signal, providing a digital word corresponding to each sample. A digital filter provides a sum of the digitized samples over a programmable symbol time corresponding to the signal data rate. The data signal is then extracted by processing the sums of the digitized samples.

REFERENCES:
patent: 3386078 (1968-05-01), Varsos
patent: 4057759 (1977-11-01), Genova et al.
patent: 4584534 (1986-04-01), Lijphart et al.
patent: 4691176 (1987-09-01), Hsiung et al.
patent: 4879728 (1989-11-01), Tarallo
Leclert et al; Universal Carrier Recovery Loop for QASK and PSK Signal Sets; 1/83; pp. 130-136; IEEE Transactions on Communications, vol. COM-31, No. 1.

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